I am not sure what you mean to say with this but reading back through this thread I'm not sure if what is implied here has come through very well. The idea is that well outside the range of where people died from being evaporated, there was a much larger range of people who were exposed to a lot of ionizing radiation from various sources like black rain. But, then, there's a range where people exposed to relatively low doses but higher than background radiation seem to have lower cancer incidence than average. So there is a distance where it is higher than average, then further away from that, it becomes lower than average, before finally going back to average.

This doesn't necessarily imply that radiation hormesis is the only possible explanation, but the easy hand-waves are all basically out. Something weird is happening here and it seems to repeat in different circumstances, too. There is not much to go on other than confounding results and proposed mechanisms as far as I can tell.